Piagetian Tests

I did my piagetian tests on my three year old niece, my 5 year old nephew and my 9 year old niece. I video taped the tests as well, but we couldn't figure out how to get the video downloaded onto the computer (stupid technology...). The results were as anticipated. My three year old niece gave all the anticipated answers, but when I poured the water from a smaller glass into a larger glass, she said it was the smaller glass that had more water (I think because it looked fuller).
With my 5 year old nephew, he was trying to out smart me. At first he said the two balls of play-doh were different, but then I rounded them out more and he said that NOW they had the same amount. Also, when I put out the pennies in two rows, at first he said they did not have the same amount. I asked him why and he said "because of this one" and he pointed to the one coin that was tails up. After, I flipped it over, he said they had the same amount. Finally, when I poured the water from a smaller glass into the taller, skinnier glass, he said that that one had more water. What was funny is when he watched his little sister's video and saw that she had said the other glass, he laughed and said "she got that one wrong!"
Other interesting things that came up were when my nephew asked "what does 'amount' mean?" It made me wonder if Leah (the three year old) really understood the questions, or if Noah was just in the question stage where he asks about everything he can. But over all it was a fun experiment, especially for my sister to see what exactly is going on in her kids brains and why they do some of the things they do.